Answer:
people having kids with everyone ,
Step-by-step explanation:
1. As food availability increases, carrying capacity increases in all ecosystems.
2.Animals who feed on the predators of the fish will increase in number.
3.As population density increases, the spread of disease is increased
4.How is disease affected by a population's density? 
5.The population has a limited food supply.
6. Natality - birth rate 
 
Mortality - death rate 
 
Immigration - an individual enters the population 
 
Emigration - an individual leaves the population